fixed resub messages

src/widgets/helper/scrollbarhighlight.hpp

@@ -9,7 +9,7 @@ class ScrollbarHighlight
 {
 public:
     enum Style : char { None, Default, Line };
-    enum Color : char { Highlight };
+    enum Color : char { Highlight, Subscription };
 
     ScrollbarHighlight();
     ScrollbarHighlight(Color _color, Style _style = Default);

src/widgets/scrollbar.cpp

@@ -242,6 +242,8 @@ void Scrollbar::paintEvent(QPaintEvent *)
                 switch (highlight.getColor()) {
                     case ScrollbarHighlight::Highlight:
                         return app->themes->scrollbars.highlights.highlight;
+                    case ScrollbarHighlight::Subscription:
+                        return app->themes->scrollbars.highlights.subscription;
                 }
                 return QColor();
             }();